While you are on the site, in your browser find and click "Add to Home Screen" A CGN beaver app icon will then be created to your phone that is directly link to the site.
Note: This feature may not be available in some browsers.
In a boxlock gun, the mechainism is housed inside the receiver. In a sidelock, the sear/hammer/mainspring assemblies are mounted on detachable lockplates.
To add a bit, Westley Richards also has this patent - what is known as the Droplock.....a variant of a Boxlock that enables the removal of the locks via a hinged bottom plate on the receiver.